Table 1. Content and antioxidant capacity of antioxidant compounds in O. fragrans flowers and green tea before and after the simulated digestion.

Sample	Compound	Content(mg/g DW)		EC50(μg)
		After	Before	After	Before
O. fragrans flowers	Act	10.77 ± 0.01	62.46 ± 0.82**	1.42 ± 0.08	0.89 ± 0.05**
	IsoAct	0.39 ± 0.00	2.86 ± 0.01**	1.07 ± 0.18	1.46 ± 0.16*
	ChA	0.27 ± 0.02	1.19 ± 0.06*	1.93 ± 0.15	0.81 ± 0.04**
	CA	0.08 ± 0.00	0.18 ± 0.00**	2.85 ± 0.21	0.55 ± 0.03**
	SAL	1.51 ± 0.03	4.60 ± 0.09*	/	/
Longjing Tea	C	0.54 ± 0.01	1.16 ± 0.01**	1.49 ± 0.08	1.42 ± 0.49
	CAF	10. 86 ± 0.45	23.01 ± 0.02*	/	/
	EC	1.82 ± 0.04	7.02 ± 0.08*	1.21 ± 0.05	0.88 ± 0.11**
	ECG	0.19 ± 0.03	1.78 ± 0.07**	1.96 ± 0.09	0.45 ± 0.05**
	EGC	1.12 ± 0.05	3.86 ± 0.09**	0.92 ± 0.04	0.51 ± 0.03*
	EGCG	nd	10.65 ± 0.92*	1.44 ± 0.10	0.98 ± 0.04*
	GA	2.06 ± 0.06	3.76 ± 0.09**	0.88 ± 0.07	1.54 ± 0.21**
	GC	1.14 ± 0.06	0.39 ± 0.05**	2.50 ± 0.12	1.23 ± 0.10**
	GCG	0.74 ± 0.13	3.30 ± 0.11**	0.99 ± 0.05	0.62 ± 0.06*

Act: actoside Verbascoside; IsoAct: isoacteoside; ChA: chlorogenic acid; CA: caffeic acid; SAL: salidroside; C: catechin; CAF: caffeine; EGCG: (−)-Epigallocatechin gallate; EC: L-Epicatechin; ECG: (−)-Epicatechin gallate; EGC: (−)-Epigallocatechin; GA: gallic acid; GC: (−)-gallocatechin; GCG: (−)-Gallocatechin gallate. Values are expressed as means ± SD (n = 3). nd: Not detected.

EC50: concentration of antioxidant for 50% of maximum effect. The concentration was showed in μg for the final reaction volume (250 μL). *Value and **Value was significantly different from that after simulated digestion at P < 0.05 and P < 0.01, respectively.